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/*
* Copyright 2018 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import <XCTest/XCTest.h>
#include <leveldb/db.h>
#import "Firestore/Protos/objc/firestore/local/Target.pbobjc.h"
#import "Firestore/Source/Local/FSTLevelDBKey.h"
#import "Firestore/Source/Local/FSTLevelDBMigrations.h"
#import "Firestore/Source/Local/FSTLevelDBQueryCache.h"
#import "Firestore/Source/Local/FSTWriteGroup.h"
#include "Firestore/core/src/firebase/firestore/util/ordered_code.h"
#import "Firestore/Example/Tests/Local/FSTPersistenceTestHelpers.h"
NS_ASSUME_NONNULL_BEGIN
using firebase::firestore::util::OrderedCode;
using leveldb::DB;
using leveldb::Options;
using leveldb::Status;
@interface FSTLevelDBMigrationsTests : XCTestCase
@end
@implementation FSTLevelDBMigrationsTests {
std::shared_ptr<DB> _db;
}
- (void)setUp {
Options options;
options.error_if_exists = true;
options.create_if_missing = true;
NSString *dir = [FSTPersistenceTestHelpers levelDBDir];
DB *db;
Status status = DB::Open(options, [dir UTF8String], &db);
XCTAssert(status.ok(), @"Failed to create db: %s", status.ToString().c_str());
_db.reset(db);
}
- (void)tearDown {
_db.reset();
}
- (void)testAddsTargetGlobal {
FSTPBTargetGlobal *metadata = [FSTLevelDBQueryCache readTargetMetadataFromDB:_db];
XCTAssertNil(metadata, @"Not expecting metadata yet, we should have an empty db");
[FSTLevelDBMigrations runMigrationsOnDB:_db];
metadata = [FSTLevelDBQueryCache readTargetMetadataFromDB:_db];
XCTAssertNotNil(metadata, @"Migrations should have added the metadata");
}
- (void)testSetsVersionNumber {
FSTLevelDBSchemaVersion initial = [FSTLevelDBMigrations schemaVersionForDB:_db];
XCTAssertEqual(0, initial, "No version should be equivalent to 0");
// Pick an arbitrary high migration number and migrate to it.
[FSTLevelDBMigrations runMigrationsOnDB:_db];
FSTLevelDBSchemaVersion actual = [FSTLevelDBMigrations schemaVersionForDB:_db];
XCTAssertGreaterThan(actual, 0, @"Expected to migrate to a schema version > 0");
}
- (void)testCountsQueries {
NSUInteger expected = 50;
FSTWriteGroup *group = [FSTWriteGroup groupWithAction:@"Setup"];
for (int i = 0; i < expected; i++) {
std::string key = [FSTLevelDBTargetKey keyWithTargetID:i];
[group setData:"dummy" forKey:key];
}
// Add a dummy entry after the targets to make sure the iteration is correctly bounded.
// Use a table that would sort logically right after that table 'target'.
std::string dummyKey;
// Magic number that indicates a table name follows. Needed to mimic the prefix to the target
// table.
OrderedCode::WriteSignedNumIncreasing(&dummyKey, 5);
OrderedCode::WriteString(&dummyKey, "targetA");
[group setData:"dummy" forKey:dummyKey];
Status status = [group writeToDB:_db];
XCTAssertTrue(status.ok(), @"Failed to write targets");
[FSTLevelDBMigrations runMigrationsOnDB:_db];
FSTPBTargetGlobal *metadata = [FSTLevelDBQueryCache readTargetMetadataFromDB:_db];
XCTAssertEqual(expected, metadata.targetCount, @"Failed to count all of the targets we added");
}
@end
NS_ASSUME_NONNULL_END
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